... cement machinery parts with the material of carbon or low alloy steel. Product Name: Marine rudder/shaft/ sternpost system, ... chassis,steel bracket,rudder pintle, sternpost, chain wheel, slag pot, etc.Material:Carbon steel,Low alloy steel: ZG20SiMn, ZG35SiMn, ZG35SiMnMo, ZG35CrMo, ... ,rudder pintle, sternpost, chain wheel, slag pot with the material of carbon steel,low alloy steel and so on.More ...